\begin{tabular*}{\hsize}{@{\hskip\tabcolsep\extracolsep\fill}l*{8}{c}}
\toprule
                    &\multicolumn{2}{c}{StewardShares I}          &\multicolumn{2}{c}{StewardShares II}         &\multicolumn{2}{c}{StewardShares III}        &\multicolumn{2}{c}{Pooled}                   \\\cmidrule(lr){2-3}\cmidrule(lr){4-5}\cmidrule(lr){6-7}\cmidrule(lr){8-9}
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}\\
\midrule
Starting Anchor at  &                  0.11&                  0.09&                  0.27&                  0.29&                  0.03&                  0.03&                  0.08&                  0.08\\
100\%               &           [0.03,0.18]&           [0.01,0.16]&           [0.09,0.46]&           [0.16,0.43]&          [-0.01,0.06]&          [-0.01,0.07]&           [0.04,0.12]&           [0.04,0.12]\\
\addlinespace
Controls            &                    No&                   Yes&                    No&                   Yes&                    No&                   Yes&                    No&                   Yes\\
\midrule
Control group:      &                      &                      &                      &                      &                      &                      &                      &                      \\
  - Mean            &                  0.15&                  0.15&                  0.09&                  0.09&                  0.21&                  0.21&                  0.18&                  0.18\\
  - Std. dev.       &                  0.19&                  0.19&                  0.17&                  0.17&                  0.20&                  0.20&                  0.20&                  0.20\\
Observations        &                   256&                   256&                   102&                   102&                   483&                   482&                   841&                   840\\
\bottomrule
\end{tabular*}
